Music-spool adjusting and transposing device.



J. H. LUDWIG. MUSIC SPOOL ADJUSTING AND TRANSPOSING DEVIGE.

APPLICATION FILED K 0V.17, 1909.

Patented Jan. 17, 1911.

1M: mamas psrsns co., wnsmmrran. u c

' UNITED STATES PATENT OFFICE.

JOHN H. LUDWIG, OF NEW YORK, N. Y.

MUSIC-SPOOL ADJUSTING AND TRANSPOSING DEVICE.

Application filed November 17, 1909.

To all whom it may concern:

Be it known that I, JOHN H. LUnwio, a citizen of the United States, andresident of New York city, borough of the Bronx, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Musim Spool Adjusting and 'lransposing Devices, of whichthe following is a specification.

The object of my invention is to provide improved and el'licient meansfor regulating music rolls simultaneously in player pianos, self playingmusical instruments, and the like, to bring the music sheet correctly inalinement with the orifices of the tracker bar or bridge, and also toenable transposing of the musical composition by shifting the perforatedor slotted music sheet one or more notes to the right or left as may bedesired.

In carrying out my invention I provide supports for the music spools orrolls, and means for simultaneously shifting both spools or rollslongitudinally equally and simultaneously by a simple manipulation ofthe parts, whereby the music sheet will be adjusted to the desired.extent across the tracker bar in a direction transverse to the windingof the sheet upon the take-up roll.

My invention also comprises novel details of improvement andcombinations of parts that will be more fully hereinafter set forth andthen pointed out in the claims.

Figure 1 is a partly broken view of my improvements, and Fig. 2 is anenlarged detail sectional view of part thereof.

The numeral 1 indicates a suitable receptacle or frame within which themusic spools or rolls 2, 3 are suitably journaled. I have shown thepivots 2 3 of the music spools as supported to slide in bearings onframe 1, which pivots at their ends bear agains springs :l-, 5 that arecarried by said frame, and adapted to push the music spools and saidpivots to the right in Fig. 1.

At 6 is a shaft for spool 2 provided at its inner end with a suitablecoupling 6 for connection. with. the usual winged-pivot 2 of the spool.Shaft 6 is shown supported in suitable hearings in a frame 7, attachedto frame 1 as by screws or bolts 8. Shaft 6 is shown provided with asprocket wheel 9 to receive chain 9 for rotating said shaft and. spool 2from any usual motor, and shaft 6 is shown provided with a disk 10 tocoact with any suitable brake. Shaft 6 is mounted to slidelongitudinally in its bearings and Specification of Letters Patent.

Patented Jan. 17, 1911.

Serial No. 528,528.

is adapted to be engaged by a pusher or finger 11. which is shownsupported to slide in suitable bearings in frame 7. Pusher or finger 11is shown in the form of a bent wire having its horizontally disposedportion 11 provided with suitable threads 11 meshing in internal threads12 in a rotative shaft 12 that is shown journaled in hearings in frames1 and 7. A collar 13 on the pusher 11 may be suitably adjusted by screw13 to limit the movement of said pusher by shaft 12. Thus, as shaft 12is rotated by the fingers of the operator, pusher 11 will be moved asdesired to the right or left. As spring 4; pushes spool 2 to the rightin Fig. 1 shaft 6 will be maintained against pusher 11. WVhen pusher 11is moved to the left spool 2 will be correspondingly adjusted, and whenpusher 11 is moved to the right spring a will push spool 2 to the right,shaft 6 remaining in contact with pusher 11.

To cause both spools 2 and 3 to be adjusted simultaneously andcorrespondingly to the right or left I provide the pivot let of spool 3with threads 1% meshing in threads in a nut 15 secured to frame 1, pivot14 also being provided with a sprocket wheel 16 receiving a chain 16that passes around sprocket wheel 17 secured upon shaft 12. The ratio ofthe sprocket wheels 16, 17 and the relation of threads 14 to threads 11and 12 are such that, when shaft 12 is rotated to move pusher 11 to theright or left the simultaneous rotation of pivot 14 will cause thelatter to move to the right or left a distance equal to thecorresponding movement of pusher 11, and as spring 5 pushes pivot 3toward the right both spools 2 and 3 will be simultaneously adjusted tothe right or left a corresponding distance. lVhen the spools areadjusted upon their respective pivots and the apert-ured or slottedmusic sheet 18 is connected with the spools in usual manner, so that themusic sheet will travel over the tracker bar or bridge 19, the desiredtransverse adjustment of the music sheet may be readily effected bymerely rotating shaft 12 to the right or left, whereby both spools 2 and3 will he correspondingly shifted to cause the music sheet to beadjusted lengthwise of the tracker. By this means proper and accurateadjustment of the music sheet with respect to the orifices of thetracker may be made according to the key of the musical composition,and, furthermore, the music sheet may be accurate rendering of themusical composition may be effected, as the music sheet can at all timesand under all conditions of the atmosphere be adjusted into properalinement with the orifices of the tracker.

Having now described 111 invention what 1 I claim is l. The combinationof a pair of spools, means for rotativelv and slidablv supporting saidspools, spring means normally pressing said spools simultaneously in thesame direction, supports for the opposite ends of said spools, a shaft,slidable means operated by said shaft for adjusting the supporting meansof one of said spools in the direction of its axis, and means operatedby said shaft for adjusting the supporting means of the other spool 111the same direction as the first named spool.

The combination of a pair of spools, means for pivotall; and slidablysupporting said spools at corresponding ends, a slidable shaft at theopposite end of one of said spools, a pusher to operate said shaft, ashaft to operate said pusher, a pivot for the corresponding end of theother spool, and means operated by said shaft for mov- 111g said pivotcoextensively with the movement of said pusher.

23. The combination of a pair of rotative spools, means for pivotallyand slidablv supporting said spools at corresponding ends, a slidableshaft at the opposite end of one of said spools, a pusher to operatesaid shaft, a shaft connected by screw threads with said pusher, a pivotfor the corresponding end of the other spool, a nut supporting saidpivot, said pivot having threads meshing with said nut, and gearingconnecting said shaft with said pivot.

4. The combination of a shaft rotativelv and slidably supported, apusher to eoact with said shaft, a rotative shaft, means connecting saidshaftand pusher for sliding 1 the latter by the rotation of said sha ft.a pivot having threads, a nut receiving said threads and gearingconnecting said shaft and pivot.

The combination of a shaft, means for slidably and rotatively supportingthe same, av pusher having a portion adapted to slide said shaft andprovided with threads, and a shaft having threads meshing with the 1threads of said pusher and means to sup port said shaft.

slidably and rotativelv s111 porting the same, a pusher having a portionadapted to slide said shaft and provided with threa ls, a shaft havingthreads 111e hi11g with the threads of said pusher, a pivot providedwith threads, a nut receiving said pivot. and gearing connecting saidshaft and pivot.

'T. The combination of a shaft, means for rotativelv and slidablvsupporting said shaft, a pusher having a portion extending parallel tosaid shaft and slidably supported, said pusher having a portionextending in line with the end of said shaft, said pusher being providedwith threads, and a shaft having threads meshing with the threads of thepusher.

8. The combination of a shaft, means for rotativel and slidablvsupporting said shaft, a pusher having a portion extending parallel tosaid shaft. and slidablv supported, said pusher having a portionextending 111 line with the end of said shaft, said pusher beingprovided with 11 ends. a shaft having threads meshing with the threadsof the pusher, a pivot provided with threads, a nut receiving saidthreads, and gearing connecting said shaft and pivot.

Signed at New York cit v. in the countv of New York, and State of NewYork, this 16th day of November, A. D. 1909.

JOHN H. L111)1V.11' 1.

Vitnesses:

CLARENCE MoMnan'x, MARIE F. hiixnieiir.

('3. The combination of a shaft, means for

